Welcome to Sports Mole's live text coverage of the La Liga meeting between Real Madrid and Atletico Madrid at the Estadio Bernabeu.
Atleti may trail their city rivals by 10 points at the top of the table, having also played one game more, but they have won on each of their previous three league visits here - the first team to ever do so.
Los Blancos can sense a first title success in five years but still face all three sides directly below them between now and the end of the season, with today's Madrid derby followed closely by a huge showdown with Barcelona in a fortnight's time.
Can the hosts maintain their impressive run of form to stay clear at the top? Find out with our extensive updates below.
REAL MADRID XI: Navas; Carvajal, Pepe, Ramos, Marcelo; Kroos, Casemiro, Modric; Bale, Benzema, Ronaldo
ATLETICO MADRID XI: Oblak; Juanfran, Godin, Savic, Filipe Luis; Gabi, Koke, Saul, Carrasco; Griezmann, Torres
REAL MADRID SUBS: Casilla, Nacho, James Rodriguez, Kovacic, Vazquez, Morata, Isco
ATLETICO MADRID SUBS: Moreira, Lucas, Gimenez, Thomas, Cerci, Rober, Correa
Zinedine Zidane: "I am not preparing anything. All I am focused on is what's left of the season. You know the stature of this club, I know it too, and I know what it means to coach Real Madrid, for better or for worse. I am ready for anything and that is why I only speak about the next game, that is all I am interested in. The important game is tomorrow, there are three points to play for. I don't know what will happen beyond that."
Diego Simeone: "It is like going to any other ground. We want the three points wherever we go. We are expecting an opponent that comes out strongly, with high pressure and tempo in the first 20-25 minutes. With BBC, and I imagine they will play Isco, they will have more possession than if Casemiro featured. It is the same as playing at any ground, we always want the three points - we need them for our own objectives."
REAL MADRID SUBS: Casilla, Nacho, James Rodriguez, Kovacic, Vazquez, Morata, Isco
ATLETICO MADRID SUBS: Moreira, Lucas, Gimenez, Thomas, Cerci, Rober, Correa